sohaib qamar / HTTPServer

Changes made for RPC

HTTPConnection.h@4:d065642c32cc, 2013-05-28 (annotated)

Committer:
leihen
Date:
Tue May 28 21:20:58 2013 +0000
Revision:
4:d065642c32cc
Parent:
3:d6224049b3bf
Child:
13:aa5338a5e452
Added parameter parsing from uri in http webrequest.

; Documentation updated.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leihen 0:7a2421e63e74 1 /* HTTPConnection.h */
leihen 3:d6224049b3bf 2 /*
leihen 3:d6224049b3bf 3 Copyright (c) 2013 Henry Leinen (henry[dot]leinen [at] online [dot] de)
leihen 3:d6224049b3bf 4
leihen 3:d6224049b3bf 5 Permission is hereby granted, free of charge, to any person obtaining a copy
leihen 3:d6224049b3bf 6 of this software and associated documentation files (the "Software"), to deal
leihen 3:d6224049b3bf 7 in the Software without restriction, including without limitation the rights
leihen 3:d6224049b3bf 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
leihen 3:d6224049b3bf 9 copies of the Software, and to permit persons to whom the Software is
leihen 3:d6224049b3bf 10 furnished to do so, subject to the following conditions:
leihen 3:d6224049b3bf 11
leihen 3:d6224049b3bf 12 The above copyright notice and this permission notice shall be included in
leihen 3:d6224049b3bf 13 all copies or substantial portions of the Software.
leihen 3:d6224049b3bf 14
leihen 3:d6224049b3bf 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
leihen 3:d6224049b3bf 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
leihen 3:d6224049b3bf 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
leihen 3:d6224049b3bf 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
leihen 3:d6224049b3bf 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
leihen 3:d6224049b3bf 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
leihen 3:d6224049b3bf 21 THE SOFTWARE.
leihen 3:d6224049b3bf 22 */
leihen 0:7a2421e63e74 23 #ifndef __HTTPConnection_H__
leihen 0:7a2421e63e74 24 #define __HTTPConnection_H__
leihen 0:7a2421e63e74 25
leihen 0:7a2421e63e74 26 #include "mbed.h"
leihen 0:7a2421e63e74 27 #include "TCPSocketConnection.h"
leihen 0:7a2421e63e74 28
leihen 0:7a2421e63e74 29 #include <string>
leihen 0:7a2421e63e74 30 #include <map>
leihen 0:7a2421e63e74 31
leihen 1:6b7472d5e9ee 32 class HTTPServer;
leihen 1:6b7472d5e9ee 33
leihen 3:d6224049b3bf 34 /** Type HTTPRequestType enumerates request types
leihen 3:d6224049b3bf 35 */
leihen 3:d6224049b3bf 36 typedef enum
leihen 0:7a2421e63e74 37 {
leihen 3:d6224049b3bf 38 HTTP_RT_GET, /*!< GET request */
leihen 3:d6224049b3bf 39 HTTP_RT_POST, /*!< POST request */
leihen 3:d6224049b3bf 40 HTTP_RT_PUT, /*!< PUT request */
leihen 3:d6224049b3bf 41 HTTP_RT_OPTIONS, /*!< OPTIONS request */
leihen 3:d6224049b3bf 42 HTTP_RT_HEAD, /*!< HEAD request */
leihen 3:d6224049b3bf 43 HTTP_RT_DELETE, /*!< DELETE request */
leihen 3:d6224049b3bf 44 HTTP_RT_TRACE, /*!< TRACE request */
leihen 3:d6224049b3bf 45 HTTP_RT_CONNECT /*!< CONNECT request */
leihen 3:d6224049b3bf 46 } HTTPRequestType;
leihen 0:7a2421e63e74 47
leihen 0:7a2421e63e74 48 /** class HTTPConnection, encapsulates one connection being made throught the HTTPServer
leihen 0:7a2421e63e74 49 *
leihen 0:7a2421e63e74 50 */
leihen 0:7a2421e63e74 51 class HTTPConnection {
leihen 0:7a2421e63e74 52 public:
leihen 3:d6224049b3bf 53
leihen 3:d6224049b3bf 54 /** HTTPMessage contains all the details of the request received by external HTTP client.
leihen 3:d6224049b3bf 55 */
leihen 3:d6224049b3bf 56 typedef struct
leihen 3:d6224049b3bf 57 {
leihen 3:d6224049b3bf 58 /** Specifies the request type received
leihen 3:d6224049b3bf 59 */
leihen 4:d065642c32cc 60 HTTPRequestType request;
leihen 3:d6224049b3bf 61 /** The uri associated with the request.
leihen 3:d6224049b3bf 62 */
leihen 4:d065642c32cc 63 std::string uri;
leihen 3:d6224049b3bf 64 /** Contains the HTTP/1.1 or HTTP/1.0 version requested by client.
leihen 3:d6224049b3bf 65 */
leihen 4:d065642c32cc 66 std::string version;
leihen 3:d6224049b3bf 67 /** Map of headers provided by the client in the form <HeaderName>:<HeaderValue>
leihen 3:d6224049b3bf 68 */
leihen 4:d065642c32cc 69 std::map<std::string, std::string> headers;
leihen 4:d065642c32cc 70 /** Map of arguments that came with the uri string
leihen 4:d065642c32cc 71 */
leihen 4:d065642c32cc 72 std::map<std::string, std::string> args;
leihen 3:d6224049b3bf 73 } HTTPMessage;
leihen 4:d065642c32cc 74
leihen 3:d6224049b3bf 75 /** Public constructor for HTTPConnection objects.
leihen 3:d6224049b3bf 76 *
leihen 3:d6224049b3bf 77 */
leihen 3:d6224049b3bf 78 HTTPConnection ();
leihen 3:d6224049b3bf 79
leihen 3:d6224049b3bf 80 /** Destructor for HTTPConnection objects.
leihen 3:d6224049b3bf 81 *
leihen 3:d6224049b3bf 82 */
leihen 3:d6224049b3bf 83 ~HTTPConnection();
leihen 3:d6224049b3bf 84
leihen 3:d6224049b3bf 85 /** Query if this connection is already closed and can be deleted.
leihen 3:d6224049b3bf 86 @returns true, if connection is closed.
leihen 3:d6224049b3bf 87 */
leihen 3:d6224049b3bf 88 bool is_closed();
leihen 3:d6224049b3bf 89
leihen 3:d6224049b3bf 90 /** Polling function for the connection.
leihen 3:d6224049b3bf 91 * @returns -1 if connection is not required anymore. In the current version of this library this should be the normal case. This may change in future versions.
leihen 3:d6224049b3bf 92 */
leihen 3:d6224049b3bf 93 int poll();
leihen 0:7a2421e63e74 94
leihen 0:7a2421e63e74 95 protected:
leihen 3:d6224049b3bf 96
leihen 3:d6224049b3bf 97 /** Function to close this connection. To be called from internally.
leihen 3:d6224049b3bf 98 */
leihen 3:d6224049b3bf 99 void close();
leihen 3:d6224049b3bf 100
leihen 1:6b7472d5e9ee 101 friend class HTTPServer;
leihen 1:6b7472d5e9ee 102
leihen 0:7a2421e63e74 103 TCPSocketConnection m_Tcp;
leihen 1:6b7472d5e9ee 104 HTTPMessage m_Msg;
leihen 4:d065642c32cc 105
leihen 4:d065642c32cc 106 /** parse a HTTP request line from the content of the buffer.
leihen 4:d065642c32cc 107 * @param buffer : the request received from the client in the form <RequestType> <uri> <Http Version>
leihen 4:d065642c32cc 108 * @returns -1 if the request is invalid or 0 if the request is valid
leihen 4:d065642c32cc 109 */
leihen 2:8653bbcf7e58 110 int parse(char *buffer);
leihen 4:d065642c32cc 111
leihen 4:d065642c32cc 112 /** parses the received string in \c buffer for HTTP request headers.
leihen 4:d065642c32cc 113 * @param buffer : buffer which contains the string to parse for headers.
leihen 4:d065642c32cc 114 * @returns -1 in case of an error, otherwise returns 0
leihen 4:d065642c32cc 115 */
leihen 3:d6224049b3bf 116 int parseHeader(char *buffer);
leihen 0:7a2421e63e74 117 int receiveHeaders(const char* buffer, int nBuffSize);
leihen 4:d065642c32cc 118
leihen 4:d065642c32cc 119 /** Function which receives a line from the current Socket
leihen 4:d065642c32cc 120 * @param szline : will contain one line received from the socket
leihen 4:d065642c32cc 121 * @param nMaxLen : the size of the buffer. If the line is longer than the buffer the line is cropped at the end.
leihen 4:d065642c32cc 122 * @param nTimeout : if the timeout elapses, only the portion that has been received within this time will be returned.
leihen 4:d065642c32cc 123 * @param szLineTerm : the \c end-of-line character to be used to detect the end of the line.
leihen 4:d065642c32cc 124 * @returns -1 in case of an error or timeout, -2 in case of an empty line or the number of received characters.
leihen 4:d065642c32cc 125 */
leihen 0:7a2421e63e74 126 int receiveLine(char* szLine, int nMaxLen, int nTimeout = -1, char szLineTerm = '\n');
leihen 0:7a2421e63e74 127
leihen 4:d065642c32cc 128
leihen 4:d065642c32cc 129 /** parse the receoved \c uri_string for arguments which will be stored in the \c args map.
leihen 4:d065642c32cc 130 * @parse uri_string : the uri string which was received from the client.
leihen 4:d065642c32cc 131 * @parse args : the args map which will receive the argument:value touples from the \c uri_string.
leihen 4:d065642c32cc 132 * @returns -1 if an error occured, otherwise returns 0.
leihen 4:d065642c32cc 133 */
leihen 4:d065642c32cc 134 int parseUriArgs(char *uri_string, map<string,string>& args);
leihen 4:d065642c32cc 135
leihen 0:7a2421e63e74 136 };
leihen 0:7a2421e63e74 137
leihen 0:7a2421e63e74 138 #endif // __HTTPConnection_H__